Automobile door lock



fpri 7, n1925. v 1,532,294

w P. F. AUGENBRAUN AUTOMOBILE DOOR LOCK Filed June 50, 1920 Y 2 Sheets-Sheet l albumi; d

P. F. AUGENBRAUN AUTOMOBILE DOOR LOCK Filed June 30. 1920 2 Sheets-Sheet 2 atten/w114 Paterited Apr. 7,I 1925.

- UNITED STATES PATENT OFFICE.

PIETER F. AUGEN'BRAUN, OF STAMFORD, CONNECTICUT, AASSIGNOB TO THE YALE '.IOW'JSIE MANUFACTURING COMPANY, OF STANFORD, CONNECTIIC'WI.I

AUTOMOBILE DOOR LOCK.

Application led June 30,

' H To allfwhom t may concern.' v

Be 1t known that I, PETER F. AUGEN- BRAUN, a citizen of the United States, and

'a resident of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Automobile Door Locks; and I do hereby vdeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement" in locks for automobile doors, the object being to provide a lock in which deadlocking means for the latch bolt may be controlled and operated by a key lock at the outside of the door by a thumb turn or lmob at the inner side, thereby giving access to the car at all times through either door equipped Ywith the lock.

With this end in view my invention consists in a lock having a latch bolt, means for retracting the bolt, a means for deadlocking the bolt, a thumb. turn or knob for actuatin said dead-locking means from the inner si e of the door and a key mechanism for` actuating the said dead locking means from the outer side of the door. It further" consists in the parts and combination of parts as will be more fully explained and pointed out inthe claims. l

AIn the accompanying drawings, Figure 1 is a view in elevation of a section of a door from the outer side thereof showing the key lock; Figure 2 is a similar view from the inner side; Figure 3 is a view in elevation of the lock mechanism removed from the door and showing the key mechanism in its proper relative position; Figure 4 is a view in section on the linelA A of Figure 3; Figure 5 is a view in section on the line B B of Figure 3'; Figure 6 is a view of the deadlocking slide and thumb knob for actuating the same; Figure 7 is a view inrear section Vof the cover plate for the deadlocking lslide and Figure 8 is a view of the tumbler lock and the bar for connecting the 1920. Serial No. 393,044.

Secured to the inner face of the casin 8 1s the L-shaped plate 10v which is provi ed with screw holes for the passage of the screws 11 which secure it to the casing 8, spacin lugs being struck up from the plate aroun the screw holes therein for holding the plate awayN from the casing suliiciently to receive the-handle lever 12, hub 13 of the outside handle and the projections 14 and 15 from the latch'bolt 16. Y

This latch bolt is mounted to slide against the inner face of the casing 8, and is su ported at its rear end between the gui e lugs 17 and by its head 16a resting in a slot in the end flange of the casing. The projection 14 on bolt 16 is engaged by the roll back 18 onthe outside handle hub 13 for retracting the bolt from the outer side of the door, andthe projection 15 is engaged by the vhandle lever 12 for retracting the bolt from the inside of the car, when the bolt is not deadlocked.

The bolt 16 is recessed lon. its inner face to permit the handle 12' to pass up in front of same as shown in Figure 3, and this handle is pivoted at 19 to the casing 8 and is nor-f mally held in its forward position and in contact with the screw 11 by the spring 20, and the projection 15 on the bolt 16 is held against the opposite edge of the lever by the spring 21 bearing against the rear face j of the projection 14V on theA bolt, the said spring operating to normally andv yieldingly hold the latch bolt in its projected orv locking position asshown in Figure 3.- When fso projected and notv deadlocked.v as will be ward and away from the bolt 16, and when in its deadlocking position its up r end is at the rear of the shoulder 24 on l e head 16a of thebolt and in the path of movement of said head as shown in dotted lines in Fig- 1.105

ure 3, thus locking'the bolt in itsprojectedl position. i j

Mounted in the cae` and accessible from the `inside of the lcar'is thev thumb turn with a wrist pin 26 resting in an elongated slot 27 in the dead locking slide 22. This thumb knob and its stem are prevented from accidental turning movement by the spring washer 23 interposed between the casing 8 and the knob 25, but is free to be turned by the fingers, and when turned shifts the dead locking slide either to its dead-locking position or to a position below the head 16a of the bolt. When it is in its dead lockingy position, it isin the path of movement of the head of the bolt and absolutely prevents thumb knob, it can be shifted/to its reverse position by the key mechanism operable from the outside of the door.

This key mechanism comprises a cylinder lock 28 of the pin tumbler ty e, located Within a recess in the outer sur ace of the door and secured thereto by a single screw 29 passing through the door from the innerf side and enga ing a ,threaded hole in the rear end of t e cylinder of the lock 28. This screyv is eccentric to the axis of the cylinder which will prevent the latter from turning in its recessed seat, and any tendency to turn is also prevented by the projectin lug or dutchman 28a driven into the si e of the cylinder and which is let into the wood or metal door by the act of driving the cylinder home. The plug of the cylinder carries at its rear or inner end a oo n- Vnecting bar 31 having a loose connection therewith as shown in Figure 8, and the end of this connecting bar is made angular in cross section and tapered to enter the correspondingly shaped opening in the deadlocking hub 32. This hub is mounted to rotate in deadlocking slide cover plate 23 in line with the connecting bar 31, so that when the lock casing and the parts carriedI thereby are applied and attached to the inner surface of the door, the end of connecting bar 31 will enter the opening in the hub, and connect the latter with the key actuating mechanism.

The hub 32 is provided with a. laterally projecting finger 33 adapted to engage the shoulders 34 and 35 on the check plate 36 riveted to the dead lockingvslided 22, so that when hub 32 is turned in one direction, the

finger 33 thereon will engage the shoulder 34 and move the slide 22 downwardly .thus releasing the bolt 16, and When turned in the opposite direction will engage the shoulder 35 and lift the slide to its deadlocking position. After the slide has been lifted,

the linger 33 clears or passes the rshoulder 35 and rests in a position out of the path of the shoulders 34 and 35, thus leaving the slide free to be moved in the opposite direction or to its unlocking posltion by the thumb knob. If therefore -a bolt be deadlocked by the key from the outer side of a door, and access to the car be had through the door at the other side, the slide dead-` the thumb knob at the innerv key from the outer side and either bolt thus l(sieadlocked can be released by the proper It is evident that changes may be made in the details, hence I would have it undera stood that I do not confine my invention to the details shown and above'described.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, isz- .e 1. In a lock for automobile doors, the combination of a latch bolt, outside and inside means for retracting the bolt, a slide adapted to be moved into the path of the bolt and engage and deadlock the same, means at the Tinner side of the door for actuating the slide to deadlock or release the bolt, a key lock operable from the outer side of the door and having a rotary member the said key lock being independent of the bolt actuating means, a bar connected with the rotary member of the key lock and means actuated by the bar for moving the deadlocking slide to its two positions, the said slide actuating means being constructed to be moved out of engagement with the slide after the latter has been moved to dead-locking position by the key so that said slide will be left free to be moved out of engagement with the bolt by the slide operating means at the inner side of the door. f

lUl)

2. In a lock for automobile doors, the combination of a bolt, inside and outside means for retracting the same, a bolt deadlocking slide independent of either of saidfbolt retracting means, an inside knob for moving the slide to its two positions, the said slide having an elongated slot to receive a projection on the stem of the inside knob, whereby the said knob will move with the slidey whenl means for retracting the same, a vertically movable slide independent of said bolt for deadloeking the bolt, means at the inner side of the door for actuating the slide to dead,- lock 0r release the bolt, a key look operable from the outer side of the door and having a rotary member, a bar connected with said rotary member and means on said bar for actuatingthe deadlocking slide the said means being normally out of engagement with the latter when the slide is in deadlocking position. f

4. In a lock for automobile doors, the combination of a latch bolt, means for actuating the same, deadlocking means for the bolt, a

ytumbler look and having disengageable connection with. the deadlocking means.

In testimony whereof, I have signed this specification in the presence of two subscribling Witnesses.

r PETER F. AUGENBRAUN.

Witnesses: j

CHARLES A. BERRY, RoLLIN C. LEWIS. 

